<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.10/dist/vue.js"></script>
    <style>
    </style>
</head>
<body>
    <div id="app">
       <div :style="{color:'pink',fontSize:'30px',fontWeight:'bold'}">style1</div>
       <div :style="boxStyle">style2</div>
    </div>
    <script>
        const vm = new Vue({
            el:"#app",
            data(){
                return{
                    boxStyle:{
                        color:"green",
                        fontSize:"50px",
                        fontWeight:"bold",
                    }
                    
                };
            },
        });
    </script>
</body>
</html>